发布日期：2026-01-13
更新日期：2026-05-09

受影响系统：

Microsoft Windows CSC Service Windows 10 Version 1809 for x6
Microsoft Windows CSC Service Windows 10 Version 1809 for 32

描述：

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CVE(CAN) ID: CVE-2026-20839

Microsoft Windows CSC Service是美国微软（Microsoft）公司的一个应用程序，允许在本地计算机脱机时使用网络文件。

Microsoft Windows CSC Service存在访问控制错误漏洞，该漏洞源于程序未对输入内容进行正确处理，攻击者利用该漏洞可以获取敏感信息，以下产品和版本受到影响：Windows 10 Version 1809 for 32-bit Systems,Windows 10 Version 1809 for x64-based Systems,Windows Server 2019,Windows Server 2019 (Server Core installation),Windows Server 2022,Windows Server 2022 (Server Core installation),Windows 10 Version 21H2 for 32-bit Systems,Windows 10 Version 21H2 for ARM64-based Systems,Windows 10 Version 21H2 for x64-based Systems,Windows 10 Version 22H2 for x64-based Systems,Windows 10 Version 22H2 for ARM64-based Systems,Windows 10 Version 22H2 for 32-bit Systems,Windows Server 2025 (Server Core installation),Windows 11 Version 25H2 for ARM64-based Systems,Windows 11 Version 25H2 for x64-based Systems,Windows 11 Version 23H2 for ARM64-based Systems,Windows 11 Version 23H2 for x64-based Systems,Windows Server 2022, 23H2 Edition (Server Core installation),Windows 11 Version 24H2 for ARM64-based Systems,Windows 11 Version 24H2 for x64-based Systems,Windows Server 2025,Windows 10 Version 1607 for 32-bit Systems,Windows 10 Version 1607 for x64-based Systems,Windows Server 2016,Windows Server 2016 (Server Core installation),Windows Server 2008 R2 for x64-based Systems Service Pack 1,Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation),Windows Server 2012,Windows Server 2012 (Server Core installation),Windows Server 2012 R2,Windows Server 2012 R2 (Server Core installation)。



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建议：

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厂商补丁：

Microsoft
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目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载：

http://technet.microsoft.com/security/bulletin/

浏览次数：34
严重程度：0（网友投票）